Swing



sept. 3o, 1924. 1,509,986

E. M. SPRICH SWING Filed Sept. 25, 1922 Patented Sept. 30, 1924.

UNITED STATES PATENT OFFCE.

EMIL M. SPRIOH, F ST. LOUIS, MISSOURI, .SSIGNOR OIF ONE-THIRD T0 JOHN SPRICH, OF COLORADO SPRINGS, COLORAEO, AND ONE-THIRD TO ALBERT T. SIERICH, OF

BELLEVILLE, LIdNOIS.l

SWING.

Application led September 25, 1922. Serial No. 590,327.

To all fr0/Lomi t muy concern:

Be it known that I, EMIL M. SrnioH, a citizen of the United States, and resident of the city Missouri, have invented certain new and useful Improvements in Swings, of which the following is a specification containing a full, clear, and exact description, reference being had to they accompanying drawings, forming a part hereof.

My invention relates to improvements in swings, and has for its object la swing which can be easily operated, and which can be readily adjusted for various sized per' sons. j

A. further object is to construct a swing which is manipulated by pulling a rope, and in which the effort to cause the swing to oscillate can be increased or decreased.

rlhis invention is an improvement on U. S. Letters Patent lgranted, to me September 29, 1914, Patent No. 1,111,769.

1n the drawings,

Fig. 1 is a front elevation of my device.

Fig. 2 is a section taken onV the line 2 2 of Fig. 1, viewing the same in theV direction indicated by the arrow.

Fig. 3 is a perspective viewl of the supporting bracket or hanger.

Fig. 4 is a vertical sectional view of a modied form of bumper.

1n the construction of my device I employ vertical supports 5 which are connected at their upper ends by a cross-bar 6. Secured to the cross-bar are supporting brackets or hangers which consist of channel or U-shaped members 7, which are provided with openings for the insertion of bolts 8 for securing them to the bar 6. Formed integral with each U-shaped member is a ver-v tical depending member 9 which has its end 10 bifurcated, in which one end of the bars 11 are pivotally secured by means of a pivot 12. The bars 11 are provided with a plurality of spaced openings 13 near their lower ends by means of which the seat 14 is adjustably and pivotally secured. rJ'Che bars 11 are also provided intermediate their ends with a plurality of openings 15 through which the ends of a bar 16 pass. The ends of the bar 16 also pass through the bifurcation 17 of the links 18. Extending through the links 18 are bolts 19, which secure the bar 20 to the links and which ofSt. Louis, and State of ysprings 21.

extends across the links and project-s a triie beyond either side thereof, (see Fig. 1) and between the bar 20 and links 18 are coil j rlhis bar is adapted to act as a shock absorber and limit the movement of the swing. rllhe end 22 of each link 18 is pivotally secured to one end of a bar or rod 23, which has its opposite end pivotally securedto the levers 24. The levers 24 are in turn pivotally secured to the ends 25 of the projecting arms 26, which arms are formed integral with the supporting brackgs. The bars 23 and 16 tend to'` hold the swing rigid, so that there will be no danger of side movement. j

in Fig. 4 l have shown a modified form of bumper in which the bolt 27 has nuts 28 located on either side -of the links 18, so that the bolt can be adjusted up and down, and secured in position. On the upper part of the'bolt 27 is formed a chamber or housing 29 in which a coil spring 30 is secured. rlhe housing 29 is provided with slots 31,

lthrough which a pin 82 passes. This pin is secured in a stud 33 which is secured to the bar 34, and. in order to prevent the accidental removal of the stud and spring from the housing 29, a cap 35 is used. With this style of bumper it is possible to limit the Vmovement of the swing', or in other words,

make it adjustable, because when the bumper or bar 34 1s raised or set further away from the links 18, the bumper will come into v action sooner than it will with the bar 34 set closer to the links. Secured to the bar 23 is a rope or other flexible cable 36, by means of which the device is operated.

The operation of my device is as follows: The seat is first adjusted to suit the height of the operator, and then the links 18 may be so adjusted as to make the device easier or harder to operate by increasing the leverage. The raising of the links 18 will make the device harder to operate, while the lowering thereof has the reverse effect. When th-ese adjustments have been made, the operator seats himself and commences to pull on the cable 86. This pulling has a tendency to pull the levers 24 downward'or toward the bar 11. This downward movement is transferred to the links 18 which, push the bars 11 backward. The rope is then slackened and the swing moves forward. When it has reached its highest forward movement, the rope is again pulled, forcing the swing backward. This alternate pulling and releasing keeps the swing in motion, and the operator can achieve as high a swing as the bumpers will permit. The bumpers can be so adjusted as to permit the swing to pass through more than half a circle without the danger incident to attempting this in a rope swing, which is as soon as the swing has passed more than half a circle, to drop vertically downward and jolt the operator out of the seat. This is impossible for the reason that the bars 1l are rigid, and the seat must always swing in the arc of a circle.

By having theV bars, levers, links, and brackets on each side of the seat, all side swing or twisting is eliminated, and consequently, there is no danger of the swing striking the uprights 5 while in operation.

Having fully described my invention, what I claim is:

l. A swing comprising in combination with a pair of vertical supports having a cross bar extending across their upper ends, a pair of spaced apart inverted channels secured -to the cross bar, a vertical member having its lower end bifurcated formed integral with and depending from one side of each channel, a bar pivotally secured at one end in each bifurcation, a seat pivotally and adjustably secured between and adjacent the opposite end of said bars, a rod adjustably extending through said bars intermediate their ends, a projecting arm formed integral withV the opposite side of veach channel, a lever pivoted at one end to each arm, a link pivoted to the free end of each lever, a bar extending through said levers and links, said bar also serving` as a pivot for the links, a bifurcation formed in the free end of each link, said bifurcation adapted to straddle the first mentioned bars and be held in position thereon by means of the rod passing therethrough, a spring bumper carried by the links and adapted to contact with the first mentioned bars for limiting the swing thereof, and a flexible cable having one end attached to the bar carried by the levers for placing the swing in operation.

2. A swing comp rising in combination with a pair of vertical supports having their upper ends supporting a cross bar of spaced apart channels carried by said cross bar, bars having openings pivotally suspended from said channels at one end, said openings arranged in two groups on each bar` one of Asaid groups adjacent the lower end of the bars, the other intermediate the ends, the openings of each group on one bar being opposite the respective group of openings on the other bar, levers pivotally carried by said channels, links pivotally carried by said levers and adjustably secured to the bars at the group of openings intermediate their ends, whereby the physical strain incident to the operation of the swing can bc varied, a seat pivotally secured in certain of the lower group of openings and between said bars, an adjustable spring bumper carried by the links and adjacent said bars, said bumper adapted to Contact with the bars for limiting the swing thereof, and flexible means co-acting with the levers and links for placing the swing in operation.

3. The swing of claim 1 in which the bumper is made adjustable so that the swingl of the pivoted bars may be increased or decreased at will.

In testimony whereof, I have signed my name to this specification.

EMIL M. SPRICI-I.

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